diff options
Diffstat (limited to 'tests/ui/const-generics')
74 files changed, 890 insertions, 423 deletions
diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.rs new file mode 100644 index 000000000..0da68ae75 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.rs @@ -0,0 +1,13 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +fn check(_: impl std::marker::ConstParamTy) {} + +fn main() { + check(main); //~ error: `fn() {main}` can't be used as a const parameter type + check(|| {}); //~ error: `[closure@$DIR/const_param_ty_bad.rs:8:11: 8:13]` can't be used as a const parameter type + check(main as fn()); //~ error: `fn()` can't be used as a const parameter type + check(&mut ()); //~ error: `&mut ()` can't be used as a const parameter type + check(&mut () as *mut ()); //~ error: `*mut ()` can't be used as a const parameter type + check(&() as *const ()); //~ error: `*const ()` can't be used as a const parameter type +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr new file mode 100644 index 000000000..de5704ee4 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad.stderr @@ -0,0 +1,87 @@ +error[E0277]: `fn() {main}` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:7:11 + | +LL | check(main); + | ----- ^^^^ the trait `ConstParamTy` is not implemented for fn item `fn() {main}` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `[closure@$DIR/const_param_ty_bad.rs:8:11: 8:13]` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:8:11 + | +LL | check(|| {}); + | ----- ^^^^^ the trait `ConstParamTy` is not implemented for closure `[closure@$DIR/const_param_ty_bad.rs:8:11: 8:13]` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `fn()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:9:11 + | +LL | check(main as fn()); + | ----- ^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `fn()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `&mut ()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:10:11 + | +LL | check(&mut ()); + | ----- ^^^^^^^ the trait `ConstParamTy` is not implemented for `&mut ()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `*mut ()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:11:11 + | +LL | check(&mut () as *mut ()); + | ----- ^^^^^^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `*mut ()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `*const ()` can't be used as a const parameter type + --> $DIR/const_param_ty_bad.rs:12:11 + | +LL | check(&() as *const ()); + | ----- ^^^^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `*const ()` + | | + | required by a bound introduced by this call + | +note: required by a bound in `check` + --> $DIR/const_param_ty_bad.rs:4:18 + | +LL | fn check(_: impl std::marker::ConstParamTy) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.rs new file mode 100644 index 000000000..b0e3b13cc --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.rs @@ -0,0 +1,12 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct NotParam; + +fn check<T: std::marker::ConstParamTy>() {} + +fn main() { + check::<[NotParam; 0]>(); + //~^ error: `NotParam` can't be used as a const parameter type +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr new file mode 100644 index 000000000..ef55242df --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_bad_empty_array.stderr @@ -0,0 +1,16 @@ +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_bad_empty_array.rs:10:13 + | +LL | check::<[NotParam; 0]>(); + | ^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `[NotParam; 0]` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_bad_empty_array.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.rs new file mode 100644 index 000000000..e4dc76703 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.rs @@ -0,0 +1,13 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct NotParam; + +fn check<T: std::marker::ConstParamTy + ?Sized>() {} + +fn main() { + check::<&NotParam>(); //~ error: `NotParam` can't be used as a const parameter type + check::<[NotParam]>(); //~ error: `NotParam` can't be used as a const parameter type + check::<[NotParam; 17]>(); //~ error: `NotParam` can't be used as a const parameter type +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr new file mode 100644 index 000000000..86d1c94e8 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_generic_bounds_do_not_hold.stderr @@ -0,0 +1,42 @@ +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:10:13 + | +LL | check::<&NotParam>(); + | ^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `&NotParam` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy + ?Sized>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:11:13 + | +LL | check::<[NotParam]>(); + | ^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `[NotParam]` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy + ?Sized>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error[E0277]: `NotParam` can't be used as a const parameter type + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:12:13 + | +LL | check::<[NotParam; 17]>(); + | ^^^^^^^^^^^^^^ the trait `ConstParamTy` is not implemented for `NotParam` + | + = note: required for `[NotParam; 17]` to implement `ConstParamTy` +note: required by a bound in `check` + --> $DIR/const_param_ty_generic_bounds_do_not_hold.rs:7:13 + | +LL | fn check<T: std::marker::ConstParamTy + ?Sized>() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `check` + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs new file mode 100644 index 000000000..87ae83dd9 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_good.rs @@ -0,0 +1,53 @@ +// check-pass +#![allow(incomplete_features)] +#![feature(adt_const_params)] +use std::marker::ConstParamTy; + +#[derive(PartialEq, Eq)] +struct S<T> { + field: u8, + gen: T, +} + +impl<T: ConstParamTy> ConstParamTy for S<T> {} + +#[derive(PartialEq, Eq, ConstParamTy)] +struct D<T> { + field: u8, + gen: T, +} + + +fn check<T: ConstParamTy + ?Sized>() {} + +fn main() { + check::<u8>(); + check::<u16>(); + check::<u32>(); + check::<u64>(); + check::<u128>(); + + check::<i8>(); + check::<i16>(); + check::<i32>(); + check::<i64>(); + check::<i128>(); + + check::<char>(); + check::<bool>(); + check::<str>(); + + check::<&u8>(); + check::<&str>(); + check::<[usize]>(); + check::<[u16; 0]>(); + check::<[u8; 42]>(); + + check::<S<u8>>(); + check::<S<[&[bool]; 8]>>(); + + check::<D<u8>>(); + check::<D<[&[bool]; 8]>>(); + + // FIXME: test tuples +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.rs new file mode 100644 index 000000000..74283a37a --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.rs @@ -0,0 +1,17 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct NotParam; + +#[derive(PartialEq, Eq)] +struct CantParam(NotParam); + +impl std::marker::ConstParamTy for CantParam {} +//~^ error: the trait `ConstParamTy` cannot be implemented for this type + +#[derive(std::marker::ConstParamTy, Eq, PartialEq)] +//~^ error: the trait `ConstParamTy` cannot be implemented for this type +struct CantParamDerive(NotParam); + +fn main() {} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.stderr new file mode 100644 index 000000000..52b65d606 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_bad_field.stderr @@ -0,0 +1,23 @@ +error[E0204]: the trait `ConstParamTy` cannot be implemented for this type + --> $DIR/const_param_ty_impl_bad_field.rs:10:36 + | +LL | struct CantParam(NotParam); + | -------- this field does not implement `ConstParamTy` +LL | +LL | impl std::marker::ConstParamTy for CantParam {} + | ^^^^^^^^^ + +error[E0204]: the trait `ConstParamTy` cannot be implemented for this type + --> $DIR/const_param_ty_impl_bad_field.rs:13:10 + | +LL | #[derive(std::marker::ConstParamTy, Eq, PartialEq)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | +LL | struct CantParamDerive(NotParam); + | -------- this field does not implement `ConstParamTy` + | + = note: this error originates in the derive macro `std::marker::ConstParamTy` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0204`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs new file mode 100644 index 000000000..37986de48 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.rs @@ -0,0 +1,21 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params)] + +#[derive(PartialEq, Eq)] +struct ImplementsConstParamTy; +impl std::marker::ConstParamTy for ImplementsConstParamTy {} + +struct CantParam(ImplementsConstParamTy); + +impl std::marker::ConstParamTy for CantParam {} +//~^ error: the type `CantParam` does not `#[derive(Eq)]` + +#[derive(std::marker::ConstParamTy)] +//~^ error: the type `CantParamDerive` does not `#[derive(Eq)]` +struct CantParamDerive(ImplementsConstParamTy); + +fn check<T: std::marker::ConstParamTy>() {} + +fn main() { + check::<ImplementsConstParamTy>(); +} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr new file mode 100644 index 000000000..52701d559 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_no_structural_eq.stderr @@ -0,0 +1,22 @@ +error[E0277]: the type `CantParam` does not `#[derive(Eq)]` + --> $DIR/const_param_ty_impl_no_structural_eq.rs:10:36 + | +LL | impl std::marker::ConstParamTy for CantParam {} + | ^^^^^^^^^ the trait `StructuralEq` is not implemented for `CantParam` + | +note: required by a bound in `ConstParamTy` + --> $SRC_DIR/core/src/marker.rs:LL:COL + +error[E0277]: the type `CantParamDerive` does not `#[derive(Eq)]` + --> $DIR/const_param_ty_impl_no_structural_eq.rs:13:10 + | +LL | #[derive(std::marker::ConstParamTy)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `StructuralEq` is not implemented for `CantParamDerive` + | +note: required by a bound in `ConstParamTy` + --> $SRC_DIR/core/src/marker.rs:LL:COL + = note: this error originates in the derive macro `std::marker::ConstParamTy` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.rs b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.rs new file mode 100644 index 000000000..d70377a20 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.rs @@ -0,0 +1,33 @@ +#![allow(incomplete_features)] +#![feature(adt_const_params, structural_match)] + +union Union { + a: u8, +} + +impl PartialEq for Union { + fn eq(&self, other: &Union) -> bool { + true + } +} +impl Eq for Union {} +impl std::marker::StructuralEq for Union {} + +impl std::marker::ConstParamTy for Union {} + +#[derive(std::marker::ConstParamTy)] +//~^ ERROR this trait cannot be derived for unions +union UnionDerive { + a: u8, +} + +impl PartialEq for UnionDerive { + fn eq(&self, other: &UnionDerive) -> bool { + true + } +} +impl Eq for UnionDerive {} +impl std::marker::StructuralEq for UnionDerive {} + + +fn main() {} diff --git a/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.stderr b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.stderr new file mode 100644 index 000000000..293703046 --- /dev/null +++ b/tests/ui/const-generics/adt_const_params/const_param_ty_impl_union.stderr @@ -0,0 +1,8 @@ +error: this trait cannot be derived for unions + --> $DIR/const_param_ty_impl_union.rs:18:10 + | +LL | #[derive(std::marker::ConstParamTy)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/tests/ui/const-generics/assoc_const_as_type_argument.rs b/tests/ui/const-generics/assoc_const_as_type_argument.rs new file mode 100644 index 000000000..ffc7f116a --- /dev/null +++ b/tests/ui/const-generics/assoc_const_as_type_argument.rs @@ -0,0 +1,13 @@ +trait Trait { + const ASSOC: usize; +} + +fn bar<const N: usize>() {} + +fn foo<T: Trait>() { + bar::<<T as Trait>::ASSOC>(); + //~^ ERROR: expected associated type, found associated constant `Trait::ASSOC` + //~| ERROR: unresolved item provided when a constant was expected +} + +fn main() {} diff --git a/tests/ui/const-generics/assoc_const_as_type_argument.stderr b/tests/ui/const-generics/assoc_const_as_type_argument.stderr new file mode 100644 index 000000000..ac0095461 --- /dev/null +++ b/tests/ui/const-generics/assoc_const_as_type_argument.stderr @@ -0,0 +1,21 @@ +error[E0575]: expected associated type, found associated constant `Trait::ASSOC` + --> $DIR/assoc_const_as_type_argument.rs:8:11 + | +LL | bar::<<T as Trait>::ASSOC>(); + | ^^^^^^^^^^^^^^^^^^^ not a associated type + +error[E0747]: unresolved item provided when a constant was expected + --> $DIR/assoc_const_as_type_argument.rs:8:11 + | +LL | bar::<<T as Trait>::ASSOC>(); + | ^^^^^^^^^^^^^^^^^^^ + | +help: if this generic argument was intended as a const parameter, surround it with braces + | +LL | bar::<{ <T as Trait>::ASSOC }>(); + | + + + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0575, E0747. +For more information about an error, try `rustc --explain E0575`. diff --git a/tests/ui/const-generics/assoc_const_eq_diagnostic.rs b/tests/ui/const-generics/assoc_const_eq_diagnostic.rs index 4d0aaf88e..bf8202ac1 100644 --- a/tests/ui/const-generics/assoc_const_eq_diagnostic.rs +++ b/tests/ui/const-generics/assoc_const_eq_diagnostic.rs @@ -10,6 +10,7 @@ pub trait Parse { pub trait CoolStuff: Parse<MODE = Mode::Cool> {} //~^ ERROR expected associated constant bound +//~| ERROR expected associated constant bound //~| ERROR expected type fn no_help() -> Mode::Cool {} diff --git a/tests/ui/const-generics/assoc_const_eq_diagnostic.stderr b/tests/ui/const-generics/assoc_const_eq_diagnostic.stderr index ba727ee0e..d7e5e50cb 100644 --- a/tests/ui/const-generics/assoc_const_eq_diagnostic.stderr +++ b/tests/ui/const-generics/assoc_const_eq_diagnostic.stderr @@ -8,7 +8,7 @@ LL | pub trait CoolStuff: Parse<MODE = Mode::Cool> {} | help: try using the variant's enum: `Mode` error[E0573]: expected type, found variant `Mode::Cool` - --> $DIR/assoc_const_eq_diagnostic.rs:15:17 + --> $DIR/assoc_const_eq_diagnostic.rs:16:17 | LL | fn no_help() -> Mode::Cool {} | ^^^^^^^^^^ @@ -28,6 +28,18 @@ note: associated constant defined here LL | const MODE: Mode; | ^^^^^^^^^^^^^^^^ -error: aborting due to 3 previous errors +error: expected associated constant bound, found type + --> $DIR/assoc_const_eq_diagnostic.rs:11:28 + | +LL | pub trait CoolStuff: Parse<MODE = Mode::Cool> {} + | ^^^^^^^^^^^^^^^^^ help: if equating a const, try wrapping with braces: `MODE = { const }` + | +note: associated constant defined here + --> $DIR/assoc_const_eq_diagnostic.rs:8:5 + | +LL | const MODE: Mode; + | ^^^^^^^^^^^^^^^^ + +error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0573`. diff --git a/tests/ui/const-generics/const-arg-in-const-arg.full.stderr b/tests/ui/const-generics/const-arg-in-const-arg.full.stderr deleted file mode 100644 index 463a37d7e..000000000 --- a/tests/ui/const-generics/const-arg-in-const-arg.full.stderr +++ /dev/null @@ -1,163 +0,0 @@ -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:18:23 - | -LL | let _: [u8; faz::<'a>(&())]; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:21:23 - | -LL | let _: [u8; faz::<'b>(&())]; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:41:24 - | -LL | let _: Foo<{ faz::<'a>(&()) }>; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:44:24 - | -LL | let _: Foo<{ faz::<'b>(&()) }>; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:13:12 - | -LL | let _: [u8; foo::<T>()]; - | ^^^^^^^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); foo::<T>()]:` - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:15:12 - | -LL | let _: [u8; bar::<N>()]; - | ^^^^^^^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); bar::<N>()]:` - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:36:12 - | -LL | let _: Foo<{ foo::<T>() }>; - | ^^^^^^^^^^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); { foo::<T>() }]:` - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:38:12 - | -LL | let _: Foo<{ bar::<N>() }>; - | ^^^^^^^^^^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); { bar::<N>() }]:` - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:25:17 - | -LL | let _ = [0; foo::<T>()]; - | ^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); foo::<T>()]:` - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:27:17 - | -LL | let _ = [0; bar::<N>()]; - | ^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); bar::<N>()]:` - -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:30:23 - | -LL | let _ = [0; faz::<'a>(&())]; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:33:23 - | -LL | let _ = [0; faz::<'b>(&())]; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:47:19 - | -LL | let _ = Foo::<{ foo::<T>() }>; - | ^^^^^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); { foo::<T>() }]:` - -error: unconstrained generic constant - --> $DIR/const-arg-in-const-arg.rs:49:19 - | -LL | let _ = Foo::<{ bar::<N>() }>; - | ^^^^^^^^^^^^^^ - | - = help: try adding a `where` bound using this expression: `where [(); { bar::<N>() }]:` - -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:52:27 - | -LL | let _ = Foo::<{ faz::<'a>(&()) }>; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:55:27 - | -LL | let _ = Foo::<{ faz::<'b>(&()) }>; - | ^^ - | -note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 - | -LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } - | ^^ - -error: aborting due to 16 previous errors - -For more information about this error, try `rustc --explain E0794`. diff --git a/tests/ui/const-generics/const-arg-in-const-arg.min.stderr b/tests/ui/const-generics/const-arg-in-const-arg.min.stderr index a7bd9c62b..f1f22e234 100644 --- a/tests/ui/const-generics/const-arg-in-const-arg.min.stderr +++ b/tests/ui/const-generics/const-arg-in-const-arg.min.stderr @@ -1,5 +1,5 @@ error: generic parameters may not be used in const operations - --> $DIR/const-arg-in-const-arg.rs:13:23 + --> $DIR/const-arg-in-const-arg.rs:15:23 | LL | let _: [u8; foo::<T>()]; | ^ cannot perform const operation using `T` @@ -8,7 +8,7 @@ LL | let _: [u8; foo::<T>()]; = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/const-arg-in-const-arg.rs:15:23 + --> $DIR/const-arg-in-const-arg.rs:16:23 | LL | let _: [u8; bar::<N>()]; | ^ cannot perform const operation using `N` @@ -16,44 +16,44 @@ LL | let _: [u8; bar::<N>()]; = help: const parameters may only be used as standalone arguments, i.e. `N` = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/const-arg-in-const-arg.rs:18:23 | LL | let _: [u8; faz::<'a>(&())]; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/const-arg-in-const-arg.rs:20:23 | LL | let _: [u8; baz::<'a>(&())]; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/const-arg-in-const-arg.rs:21:23 | LL | let _: [u8; faz::<'b>(&())]; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/const-arg-in-const-arg.rs:23:23 | LL | let _: [u8; baz::<'b>(&())]; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/const-arg-in-const-arg.rs:27:23 + --> $DIR/const-arg-in-const-arg.rs:26:23 | LL | let _ = [0; bar::<N>()]; | ^ cannot perform const operation using `N` @@ -61,44 +61,44 @@ LL | let _ = [0; bar::<N>()]; = help: const parameters may only be used as standalone arguments, i.e. `N` = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:30:23 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:28:23 | LL | let _ = [0; faz::<'a>(&())]; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:32:23 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:30:23 | LL | let _ = [0; baz::<'a>(&())]; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:33:23 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:31:23 | LL | let _ = [0; faz::<'b>(&())]; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:35:23 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:33:23 | LL | let _ = [0; baz::<'b>(&())]; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/const-arg-in-const-arg.rs:36:24 + --> $DIR/const-arg-in-const-arg.rs:34:24 | LL | let _: Foo<{ foo::<T>() }>; | ^ cannot perform const operation using `T` @@ -107,7 +107,7 @@ LL | let _: Foo<{ foo::<T>() }>; = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/const-arg-in-const-arg.rs:38:24 + --> $DIR/const-arg-in-const-arg.rs:35:24 | LL | let _: Foo<{ bar::<N>() }>; | ^ cannot perform const operation using `N` @@ -115,44 +115,44 @@ LL | let _: Foo<{ bar::<N>() }>; = help: const parameters may only be used as standalone arguments, i.e. `N` = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:41:24 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:37:24 | LL | let _: Foo<{ faz::<'a>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:43:24 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:39:24 | LL | let _: Foo<{ baz::<'a>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:44:24 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:40:24 | LL | let _: Foo<{ faz::<'b>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:46:24 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:42:24 | LL | let _: Foo<{ baz::<'b>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/const-arg-in-const-arg.rs:47:27 + --> $DIR/const-arg-in-const-arg.rs:43:27 | LL | let _ = Foo::<{ foo::<T>() }>; | ^ cannot perform const operation using `T` @@ -161,7 +161,7 @@ LL | let _ = Foo::<{ foo::<T>() }>; = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: generic parameters may not be used in const operations - --> $DIR/const-arg-in-const-arg.rs:49:27 + --> $DIR/const-arg-in-const-arg.rs:44:27 | LL | let _ = Foo::<{ bar::<N>() }>; | ^ cannot perform const operation using `N` @@ -169,44 +169,44 @@ LL | let _ = Foo::<{ bar::<N>() }>; = help: const parameters may only be used as standalone arguments, i.e. `N` = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:52:27 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:46:27 | LL | let _ = Foo::<{ faz::<'a>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:54:27 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:48:27 | LL | let _ = Foo::<{ baz::<'a>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:55:27 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:49:27 | LL | let _ = Foo::<{ faz::<'b>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` - --> $DIR/const-arg-in-const-arg.rs:57:27 +error: generic parameters may not be used in const operations + --> $DIR/const-arg-in-const-arg.rs:51:27 | LL | let _ = Foo::<{ baz::<'b>(&()) }>; - | ^^ + | ^^ cannot perform const operation using `'b` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error[E0747]: unresolved item provided when a constant was expected - --> $DIR/const-arg-in-const-arg.rs:15:23 + --> $DIR/const-arg-in-const-arg.rs:16:23 | LL | let _: [u8; bar::<N>()]; | ^ @@ -223,7 +223,7 @@ LL | let _: [u8; faz::<'a>(&())]; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ @@ -235,13 +235,13 @@ LL | let _: [u8; faz::<'b>(&())]; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ error[E0747]: unresolved item provided when a constant was expected - --> $DIR/const-arg-in-const-arg.rs:38:24 + --> $DIR/const-arg-in-const-arg.rs:35:24 | LL | let _: Foo<{ bar::<N>() }>; | ^ @@ -252,25 +252,25 @@ LL | let _: Foo<{ bar::<{ N }>() }>; | + + error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:41:24 + --> $DIR/const-arg-in-const-arg.rs:37:24 | LL | let _: Foo<{ faz::<'a>(&()) }>; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:44:24 + --> $DIR/const-arg-in-const-arg.rs:40:24 | LL | let _: Foo<{ faz::<'b>(&()) }>; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ @@ -284,7 +284,7 @@ LL | let _ = [0; foo::<T>()]; = note: this may fail depending on what value the parameter takes error[E0747]: unresolved item provided when a constant was expected - --> $DIR/const-arg-in-const-arg.rs:27:23 + --> $DIR/const-arg-in-const-arg.rs:26:23 | LL | let _ = [0; bar::<N>()]; | ^ @@ -295,31 +295,31 @@ LL | let _ = [0; bar::<{ N }>()]; | + + error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:30:23 + --> $DIR/const-arg-in-const-arg.rs:28:23 | LL | let _ = [0; faz::<'a>(&())]; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:33:23 + --> $DIR/const-arg-in-const-arg.rs:31:23 | LL | let _ = [0; faz::<'b>(&())]; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ error[E0747]: unresolved item provided when a constant was expected - --> $DIR/const-arg-in-const-arg.rs:49:27 + --> $DIR/const-arg-in-const-arg.rs:44:27 | LL | let _ = Foo::<{ bar::<N>() }>; | ^ @@ -330,30 +330,30 @@ LL | let _ = Foo::<{ bar::<{ N }>() }>; | + + error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:52:27 + --> $DIR/const-arg-in-const-arg.rs:46:27 | LL | let _ = Foo::<{ faz::<'a>(&()) }>; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ error[E0794]: cannot specify lifetime arguments explicitly if late bound lifetime parameters are present - --> $DIR/const-arg-in-const-arg.rs:55:27 + --> $DIR/const-arg-in-const-arg.rs:49:27 | LL | let _ = Foo::<{ faz::<'b>(&()) }>; | ^^ | note: the late bound lifetime parameter is introduced here - --> $DIR/const-arg-in-const-arg.rs:8:14 + --> $DIR/const-arg-in-const-arg.rs:10:14 | LL | const fn faz<'a>(_: &'a ()) -> usize { 13 } | ^^ error: aborting due to 36 previous errors -Some errors have detailed explanations: E0658, E0747, E0794. -For more information about an error, try `rustc --explain E0658`. +Some errors have detailed explanations: E0747, E0794. +For more information about an error, try `rustc --explain E0747`. diff --git a/tests/ui/const-generics/const-arg-in-const-arg.rs b/tests/ui/const-generics/const-arg-in-const-arg.rs index 44a4f560a..9eaa54347 100644 --- a/tests/ui/const-generics/const-arg-in-const-arg.rs +++ b/tests/ui/const-generics/const-arg-in-const-arg.rs @@ -1,4 +1,6 @@ -// revisions: full min +// revisions: min +// we use a single revision because t his shoudl have a `full` revision +// but right now that ICEs and I(@BoxyUwU) could not get stderr normalization to work #![cfg_attr(full, feature(generic_const_exprs))] #![cfg_attr(full, allow(incomplete_features))] @@ -11,50 +13,42 @@ const fn baz<'a>(_: &'a ()) -> usize where &'a (): Sized { 13 } struct Foo<const N: usize>; fn test<'a, 'b, T, const N: usize>() where &'b (): Sized { let _: [u8; foo::<T>()]; //[min]~ ERROR generic parameters may not - //[full]~^ ERROR unconstrained generic constant let _: [u8; bar::<N>()]; //[min]~ ERROR generic parameters may not //[min]~^ ERROR unresolved item provided when a constant was expected - //[full]~^^ ERROR unconstrained generic constant - let _: [u8; faz::<'a>(&())]; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _: [u8; baz::<'a>(&())]; //[min]~ ERROR a non-static lifetime - let _: [u8; faz::<'b>(&())]; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _: [u8; baz::<'b>(&())]; //[min]~ ERROR a non-static lifetime + let _: [u8; faz::<'a>(&())]; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _: [u8; baz::<'a>(&())]; //[min]~ ERROR generic parameters may not + let _: [u8; faz::<'b>(&())]; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _: [u8; baz::<'b>(&())]; //[min]~ ERROR generic parameters may not let _ = [0; foo::<T>()]; //[min]~ ERROR constant expression depends on a generic parameter - //[full]~^ ERROR unconstrained generic constant let _ = [0; bar::<N>()]; //[min]~ ERROR generic parameters may not //[min]~^ ERROR unresolved item provided when a constant was expected - //[full]~^^ ERROR unconstrained generic constant - let _ = [0; faz::<'a>(&())]; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _ = [0; baz::<'a>(&())]; //[min]~ ERROR a non-static lifetime - let _ = [0; faz::<'b>(&())]; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _ = [0; baz::<'b>(&())]; //[min]~ ERROR a non-static lifetime + let _ = [0; faz::<'a>(&())]; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _ = [0; baz::<'a>(&())]; //[min]~ ERROR generic parameters may not + let _ = [0; faz::<'b>(&())]; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _ = [0; baz::<'b>(&())]; //[min]~ ERROR generic parameters may not let _: Foo<{ foo::<T>() }>; //[min]~ ERROR generic parameters may not - //[full]~^ ERROR unconstrained generic constant let _: Foo<{ bar::<N>() }>; //[min]~ ERROR generic parameters may not //[min]~^ ERROR unresolved item provided when a constant was expected - //[full]~^^ ERROR unconstrained generic constant - let _: Foo<{ faz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _: Foo<{ baz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime - let _: Foo<{ faz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _: Foo<{ baz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime + let _: Foo<{ faz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _: Foo<{ baz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not + let _: Foo<{ faz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _: Foo<{ baz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not let _ = Foo::<{ foo::<T>() }>; //[min]~ ERROR generic parameters may not - //[full]~^ ERROR unconstrained generic constant let _ = Foo::<{ bar::<N>() }>; //[min]~ ERROR generic parameters may not //[min]~^ ERROR unresolved item provided when a constant was expected - //[full]~^^ ERROR unconstrained generic constant - let _ = Foo::<{ faz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _ = Foo::<{ baz::<'a>(&()) }>; //[min]~ ERROR a non-static lifetime - let _ = Foo::<{ faz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime - //~^ ERROR cannot specify lifetime arguments - let _ = Foo::<{ baz::<'b>(&()) }>; //[min]~ ERROR a non-static lifetime + let _ = Foo::<{ faz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _ = Foo::<{ baz::<'a>(&()) }>; //[min]~ ERROR generic parameters may not + let _ = Foo::<{ faz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not + //[min]~^ ERROR cannot specify lifetime arguments + let _ = Foo::<{ baz::<'b>(&()) }>; //[min]~ ERROR generic parameters may not } fn main() {} diff --git a/tests/ui/const-generics/const-argument-non-static-lifetime.min.stderr b/tests/ui/const-generics/const-argument-non-static-lifetime.min.stderr index 82030731c..310ca75fd 100644 --- a/tests/ui/const-generics/const-argument-non-static-lifetime.min.stderr +++ b/tests/ui/const-generics/const-argument-non-static-lifetime.min.stderr @@ -1,12 +1,11 @@ -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/const-argument-non-static-lifetime.rs:14:17 | LL | let _: &'a (); - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: aborting due to previous error -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/const-generics/const-argument-non-static-lifetime.rs b/tests/ui/const-generics/const-argument-non-static-lifetime.rs index 0357e4ed5..df2f3b791 100644 --- a/tests/ui/const-generics/const-argument-non-static-lifetime.rs +++ b/tests/ui/const-generics/const-argument-non-static-lifetime.rs @@ -11,7 +11,7 @@ fn test<const N: usize>() {} fn wow<'a>() -> &'a () { test::<{ - let _: &'a (); //[min]~ ERROR a non-static lifetime + let _: &'a (); //[min]~ ERROR generic parameters may not be used in const operations 3 }>(); &() diff --git a/tests/ui/const-generics/const-param-type-depends-on-const-param.full.stderr b/tests/ui/const-generics/const-param-type-depends-on-const-param.full.stderr index f639e276f..539d840f0 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-const-param.full.stderr +++ b/tests/ui/const-generics/const-param-type-depends-on-const-param.full.stderr @@ -3,12 +3,16 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | pub struct Dependent<const N: usize, const X: [u8; N]>([(); N]); | ^ the type must not depend on the parameter `N` + | + = note: const parameters may not be used in the type of const parameters error[E0770]: the type of const parameters must not depend on other generic parameters --> $DIR/const-param-type-depends-on-const-param.rs:15:40 | LL | pub struct SelfDependent<const N: [u8; N]>; | ^ the type must not depend on the parameter `N` + | + = note: const parameters may not be used in the type of const parameters error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/const-param-type-depends-on-const-param.min.stderr b/tests/ui/const-generics/const-param-type-depends-on-const-param.min.stderr index 24aa40521..f829526ca 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-const-param.min.stderr +++ b/tests/ui/const-generics/const-param-type-depends-on-const-param.min.stderr @@ -3,12 +3,16 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | pub struct Dependent<const N: usize, const X: [u8; N]>([(); N]); | ^ the type must not depend on the parameter `N` + | + = note: const parameters may not be used in the type of const parameters error[E0770]: the type of const parameters must not depend on other generic parameters --> $DIR/const-param-type-depends-on-const-param.rs:15:40 | LL | pub struct SelfDependent<const N: [u8; N]>; | ^ the type must not depend on the parameter `N` + | + = note: const parameters may not be used in the type of const parameters error: `[u8; N]` is forbidden as the type of a const generic parameter --> $DIR/const-param-type-depends-on-const-param.rs:11:47 diff --git a/tests/ui/const-generics/const-param-type-depends-on-type-param-ungated.stderr b/tests/ui/const-generics/const-param-type-depends-on-type-param-ungated.stderr index 9c5c97bef..c5160d1c3 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-type-param-ungated.stderr +++ b/tests/ui/const-generics/const-param-type-depends-on-type-param-ungated.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | struct B<T, const N: T>(PhantomData<[T; N]>); | ^ the type must not depend on the parameter `T` + | + = note: type parameters may not be used in the type of const parameters error: aborting due to previous error diff --git a/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr b/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr index 32f7dea82..938fb08b7 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr +++ b/tests/ui/const-generics/const-param-type-depends-on-type-param.full.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | pub struct Dependent<T, const X: T>([(); X]); | ^ the type must not depend on the parameter `T` + | + = note: type parameters may not be used in the type of const parameters error[E0392]: parameter `T` is never used --> $DIR/const-param-type-depends-on-type-param.rs:11:22 diff --git a/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr b/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr index 32f7dea82..938fb08b7 100644 --- a/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr +++ b/tests/ui/const-generics/const-param-type-depends-on-type-param.min.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | pub struct Dependent<T, const X: T>([(); X]); | ^ the type must not depend on the parameter `T` + | + = note: type parameters may not be used in the type of const parameters error[E0392]: parameter `T` is never used --> $DIR/const-param-type-depends-on-type-param.rs:11:22 diff --git a/tests/ui/const-generics/defaults/trait_objects_fail.stderr b/tests/ui/const-generics/defaults/trait_objects_fail.stderr index 0e8334d03..481d77728 100644 --- a/tests/ui/const-generics/defaults/trait_objects_fail.stderr +++ b/tests/ui/const-generics/defaults/trait_objects_fail.stderr @@ -5,7 +5,7 @@ LL | foo(&10_u32); | ^^^^^^^ the trait `Trait` is not implemented for `u32` | = help: the trait `Trait<2>` is implemented for `u32` - = note: required for the cast from `u32` to the object type `dyn Trait` + = note: required for the cast from `&u32` to `&dyn Trait` error[E0277]: the trait bound `bool: Traitor<_>` is not satisfied --> $DIR/trait_objects_fail.rs:28:9 @@ -14,7 +14,7 @@ LL | bar(&true); | ^^^^^ the trait `Traitor<_>` is not implemented for `bool` | = help: the trait `Traitor<2, 3>` is implemented for `bool` - = note: required for the cast from `bool` to the object type `dyn Traitor<_>` + = note: required for the cast from `&bool` to `&dyn Traitor<_>` error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr b/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr index 6b3396a25..3a7f3cd0b 100644 --- a/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr +++ b/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr @@ -8,6 +8,9 @@ LL | let _ = const_evaluatable_lib::test1::<T>(); note: required by a bound in `test1` --> $DIR/auxiliary/const_evaluatable_lib.rs:6:10 | +LL | pub fn test1<T>() -> [u8; std::mem::size_of::<T>() - 1] + | ----- required by a bound in this function +LL | where LL | [u8; std::mem::size_of::<T>() - 1]: Sized, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `test1` @@ -34,6 +37,9 @@ LL | let _ = const_evaluatable_lib::test1::<T>(); note: required by a bound in `test1` --> $DIR/auxiliary/const_evaluatable_lib.rs:6:10 | +LL | pub fn test1<T>() -> [u8; std::mem::size_of::<T>() - 1] + | ----- required by a bound in this function +LL | where LL | [u8; std::mem::size_of::<T>() - 1]: Sized, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `test1` diff --git a/tests/ui/const-generics/generic_const_exprs/issue-74713.rs b/tests/ui/const-generics/generic_const_exprs/issue-74713.rs index 0bcb997d9..205d031d4 100644 --- a/tests/ui/const-generics/generic_const_exprs/issue-74713.rs +++ b/tests/ui/const-generics/generic_const_exprs/issue-74713.rs @@ -1,7 +1,7 @@ fn bug<'a>() where [(); { //~ ERROR mismatched types - let _: &'a (); //~ ERROR a non-static lifetime is not allowed in a `const` + let _: &'a (); //~ ERROR generic parameters may not be used in const operations }]: {} diff --git a/tests/ui/const-generics/generic_const_exprs/issue-74713.stderr b/tests/ui/const-generics/generic_const_exprs/issue-74713.stderr index e7673df0a..f0e0a4b97 100644 --- a/tests/ui/const-generics/generic_const_exprs/issue-74713.stderr +++ b/tests/ui/const-generics/generic_const_exprs/issue-74713.stderr @@ -1,11 +1,11 @@ -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/issue-74713.rs:4:17 | LL | let _: &'a (); - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error[E0308]: mismatched types --> $DIR/issue-74713.rs:3:10 @@ -18,5 +18,4 @@ LL | | }]: error: aborting due to 2 previous errors -Some errors have detailed explanations: E0308, E0658. -For more information about an error, try `rustc --explain E0308`. +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/const-generics/generic_const_exprs/nested_uneval_unification-2.rs b/tests/ui/const-generics/generic_const_exprs/nested_uneval_unification-2.rs index d45a6465b..18a993986 100644 --- a/tests/ui/const-generics/generic_const_exprs/nested_uneval_unification-2.rs +++ b/tests/ui/const-generics/generic_const_exprs/nested_uneval_unification-2.rs @@ -2,28 +2,30 @@ #![feature(generic_const_exprs)] #![allow(incomplete_features, unused_parens, unused_braces)] -fn zero_init<const N: usize>() -> Substs1<{ (N) }> +fn zero_init<const N: usize>() -> Substs1<{{ N }}> where - [u8; { (N) }]: , + [u8; {{ N }}]: , { - Substs1([0; { (N) }]) + Substs1([0; {{ N }}]) } -struct Substs1<const N: usize>([u8; { (N) }]) +struct Substs1<const N: usize>([u8; {{ N }}]) where - [(); { (N) }]: ; + [(); {{ N }}]: ; -fn substs2<const M: usize>() -> Substs1<{ (M) }> { - zero_init::<{ (M) }>() +fn substs2<const M: usize>() -> Substs1<{{ M }}> { + zero_init::<{{ M }}>() } -fn substs3<const L: usize>() -> Substs1<{ (L) }> { - substs2::<{ (L) }>() +fn substs3<const L: usize>() -> Substs1<{{ L }}> { + substs2::<{{ L }}>() } fn main() { assert_eq!(substs3::<2>().0, [0; 2]); } -// Test that the implicit ``{ (L) }`` bound on ``substs3`` satisfies the -// ``{ (N) }`` bound on ``Substs1`` +// Test that the implicit ``{{ L }}`` bound on ``substs3`` satisfies the +// ``{{ N }}`` bound on ``Substs1`` +// FIXME(generic_const_exprs): come up with a less brittle test for this using assoc consts +// once normalization is implemented for them. diff --git a/tests/ui/const-generics/generic_const_exprs/typeid-equality-by-subtyping.rs b/tests/ui/const-generics/generic_const_exprs/typeid-equality-by-subtyping.rs index 85345d65c..b22cab7c7 100644 --- a/tests/ui/const-generics/generic_const_exprs/typeid-equality-by-subtyping.rs +++ b/tests/ui/const-generics/generic_const_exprs/typeid-equality-by-subtyping.rs @@ -1,7 +1,7 @@ -// check-pass +// known-bug: #110395 // known-bug: #97156 -#![feature(const_type_id, generic_const_exprs)] +#![feature(const_type_id, const_trait_impl, generic_const_exprs)] #![allow(incomplete_features)] use std::any::TypeId; @@ -26,7 +26,10 @@ impl<T: 'static> AssocCt for T { trait WithAssoc<U> { type Assoc; } -impl<T: 'static> WithAssoc<()> for T where [(); <T as AssocCt>::ASSOC]: { +impl<T: 'static> WithAssoc<()> for T +where + [(); <T as AssocCt>::ASSOC]:, +{ type Assoc = [u8; <T as AssocCt>::ASSOC]; } @@ -38,7 +41,6 @@ where x } - fn unsound<T>(x: <One as WithAssoc<T>>::Assoc) -> <Two as WithAssoc<T>>::Assoc where One: WithAssoc<T>, diff --git a/tests/ui/const-generics/generic_const_exprs/typeid-equality-by-subtyping.stderr b/tests/ui/const-generics/generic_const_exprs/typeid-equality-by-subtyping.stderr new file mode 100644 index 000000000..8cbd12654 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/typeid-equality-by-subtyping.stderr @@ -0,0 +1,11 @@ +error: to use a constant of type `TypeId` in a pattern, `TypeId` must be annotated with `#[derive(PartialEq, Eq)]` + --> $DIR/typeid-equality-by-subtyping.rs:18:9 + | +LL | WHAT_A_TYPE => 0, + | ^^^^^^^^^^^ + | + = note: the traits must be derived, manual `impl`s are not sufficient + = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details + +error: aborting due to previous error + diff --git a/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.rs b/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.rs index c0404d35b..ae9207cf8 100644 --- a/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.rs +++ b/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.rs @@ -1,3 +1,5 @@ +// known-bug: #110395 + #![feature(generic_const_exprs, adt_const_params, const_trait_impl)] #![allow(incomplete_features)] @@ -26,7 +28,6 @@ struct Evaluatable2<const N: usize>; fn foo2<const N: usize>(a: Evaluatable2<{ N + N }>) { bar2::<{ std::ops::Add::add(N, N) }>(); - //~^ error: unconstrained generic constant // FIXME(generic_const_exprs) make this not an error } diff --git a/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr b/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr index d18c7916f..7f28771ce 100644 --- a/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr +++ b/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr @@ -1,10 +1,11 @@ -error: unconstrained generic constant - --> $DIR/unify-op-with-fn-call.rs:28:12 +error: const `impl` for trait `Add` which is not marked with `#[const_trait]` + --> $DIR/unify-op-with-fn-call.rs:10:12 | -LL | bar2::<{ std::ops::Add::add(N, N) }>(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | impl const std::ops::Add for Foo { + | ^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { std::ops::Add::add(N, N) }]:` + = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: adding a non-const method body in the future would be a breaking change error: aborting due to previous error diff --git a/tests/ui/const-generics/generic_const_exprs/unresolved_lifetimes_error.rs b/tests/ui/const-generics/generic_const_exprs/unresolved_lifetimes_error.rs new file mode 100644 index 000000000..96aeec77c --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/unresolved_lifetimes_error.rs @@ -0,0 +1,12 @@ +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +fn foo() -> [(); { + let a: &'a (); + //~^ ERROR: use of undeclared lifetime name `'a` + 10_usize +}] { + loop {} +} + +fn main() {} diff --git a/tests/ui/const-generics/generic_const_exprs/unresolved_lifetimes_error.stderr b/tests/ui/const-generics/generic_const_exprs/unresolved_lifetimes_error.stderr new file mode 100644 index 000000000..976f03706 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/unresolved_lifetimes_error.stderr @@ -0,0 +1,11 @@ +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/unresolved_lifetimes_error.rs:5:13 + | +LL | fn foo() -> [(); { + | - help: consider introducing lifetime `'a` here: `<'a>` +LL | let a: &'a (); + | ^^ undeclared lifetime + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0261`. diff --git a/tests/ui/const-generics/issue-46511.rs b/tests/ui/const-generics/issue-46511.rs index 71c50e2f3..78baba818 100644 --- a/tests/ui/const-generics/issue-46511.rs +++ b/tests/ui/const-generics/issue-46511.rs @@ -2,7 +2,7 @@ struct Foo<'a> //~ ERROR parameter `'a` is never used [E0392] { - _a: [u8; std::mem::size_of::<&'a mut u8>()] //~ ERROR a non-static lifetime is not allowed in a `const` + _a: [u8; std::mem::size_of::<&'a mut u8>()] //~ ERROR generic parameters may not be used in const operations } pub fn main() {} diff --git a/tests/ui/const-generics/issue-46511.stderr b/tests/ui/const-generics/issue-46511.stderr index b21afa56d..58c93a1fa 100644 --- a/tests/ui/const-generics/issue-46511.stderr +++ b/tests/ui/const-generics/issue-46511.stderr @@ -1,11 +1,11 @@ -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/issue-46511.rs:5:35 | LL | _a: [u8; std::mem::size_of::<&'a mut u8>()] - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error[E0392]: parameter `'a` is never used --> $DIR/issue-46511.rs:3:12 @@ -17,5 +17,4 @@ LL | struct Foo<'a> error: aborting due to 2 previous errors -Some errors have detailed explanations: E0392, E0658. -For more information about an error, try `rustc --explain E0392`. +For more information about this error, try `rustc --explain E0392`. diff --git a/tests/ui/const-generics/issues/issue-105821.rs b/tests/ui/const-generics/issues/issue-105821.rs index cba2e22c4..6cfabb65e 100644 --- a/tests/ui/const-generics/issues/issue-105821.rs +++ b/tests/ui/const-generics/issues/issue-105821.rs @@ -1,7 +1,7 @@ // check-pass #![allow(incomplete_features)] -#![feature(adt_const_params, const_ptr_read, generic_const_exprs)] +#![feature(adt_const_params, generic_const_exprs)] #![allow(dead_code)] const fn catone<const M: usize>(_a: &[u8; M]) -> [u8; M + 1] diff --git a/tests/ui/const-generics/issues/issue-56445-1.full.stderr b/tests/ui/const-generics/issues/issue-56445-1.full.stderr index 179643a75..5fc0ec260 100644 --- a/tests/ui/const-generics/issues/issue-56445-1.full.stderr +++ b/tests/ui/const-generics/issues/issue-56445-1.full.stderr @@ -1,11 +1,11 @@ -error[E0771]: use of non-static lifetime `'a` in const generic +error[E0770]: the type of const parameters must not depend on other generic parameters --> $DIR/issue-56445-1.rs:9:26 | LL | struct Bug<'a, const S: &'a str>(PhantomData<&'a ()>); - | ^^ + | ^^ the type must not depend on the parameter `'a` | - = note: for more information, see issue #74052 <https://github.com/rust-lang/rust/issues/74052> + = note: lifetime parameters may not be used in the type of const parameters error: aborting due to previous error -For more information about this error, try `rustc --explain E0771`. +For more information about this error, try `rustc --explain E0770`. diff --git a/tests/ui/const-generics/issues/issue-56445-1.min.stderr b/tests/ui/const-generics/issues/issue-56445-1.min.stderr index 9f8801341..71a7051f2 100644 --- a/tests/ui/const-generics/issues/issue-56445-1.min.stderr +++ b/tests/ui/const-generics/issues/issue-56445-1.min.stderr @@ -1,10 +1,10 @@ -error[E0771]: use of non-static lifetime `'a` in const generic +error[E0770]: the type of const parameters must not depend on other generic parameters --> $DIR/issue-56445-1.rs:9:26 | LL | struct Bug<'a, const S: &'a str>(PhantomData<&'a ()>); - | ^^ + | ^^ the type must not depend on the parameter `'a` | - = note: for more information, see issue #74052 <https://github.com/rust-lang/rust/issues/74052> + = note: lifetime parameters may not be used in the type of const parameters error: `&str` is forbidden as the type of a const generic parameter --> $DIR/issue-56445-1.rs:9:25 @@ -17,4 +17,4 @@ LL | struct Bug<'a, const S: &'a str>(PhantomData<&'a ()>); error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0771`. +For more information about this error, try `rustc --explain E0770`. diff --git a/tests/ui/const-generics/issues/issue-56445-1.rs b/tests/ui/const-generics/issues/issue-56445-1.rs index 0741c3796..d862bf24a 100644 --- a/tests/ui/const-generics/issues/issue-56445-1.rs +++ b/tests/ui/const-generics/issues/issue-56445-1.rs @@ -7,7 +7,7 @@ use std::marker::PhantomData; struct Bug<'a, const S: &'a str>(PhantomData<&'a ()>); -//~^ ERROR: use of non-static lifetime `'a` in const generic +//~^ ERROR: the type of const parameters must not depend on other generic parameters //[min]~| ERROR: `&str` is forbidden as the type of a const generic parameter impl Bug<'_, ""> {} diff --git a/tests/ui/const-generics/issues/issue-62878.full.stderr b/tests/ui/const-generics/issues/issue-62878.full.stderr index 3a2b291d7..c658b5a6e 100644 --- a/tests/ui/const-generics/issues/issue-62878.full.stderr +++ b/tests/ui/const-generics/issues/issue-62878.full.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | fn foo<const N: usize, const A: [u8; N]>() {} | ^ the type must not depend on the parameter `N` + | + = note: const parameters may not be used in the type of const parameters error: aborting due to previous error diff --git a/tests/ui/const-generics/issues/issue-62878.min.stderr b/tests/ui/const-generics/issues/issue-62878.min.stderr index 5a721720d..9c0e5179c 100644 --- a/tests/ui/const-generics/issues/issue-62878.min.stderr +++ b/tests/ui/const-generics/issues/issue-62878.min.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | fn foo<const N: usize, const A: [u8; N]>() {} | ^ the type must not depend on the parameter `N` + | + = note: const parameters may not be used in the type of const parameters error: `[u8; N]` is forbidden as the type of a const generic parameter --> $DIR/issue-62878.rs:5:33 diff --git a/tests/ui/const-generics/issues/issue-71169.full.stderr b/tests/ui/const-generics/issues/issue-71169.full.stderr index 1f5880f36..ccdfbbd54 100644 --- a/tests/ui/const-generics/issues/issue-71169.full.stderr +++ b/tests/ui/const-generics/issues/issue-71169.full.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | fn foo<const LEN: usize, const DATA: [u8; LEN]>() {} | ^^^ the type must not depend on the parameter `LEN` + | + = note: const parameters may not be used in the type of const parameters error: aborting due to previous error diff --git a/tests/ui/const-generics/issues/issue-71169.min.stderr b/tests/ui/const-generics/issues/issue-71169.min.stderr index 998b16a79..ebfb24bec 100644 --- a/tests/ui/const-generics/issues/issue-71169.min.stderr +++ b/tests/ui/const-generics/issues/issue-71169.min.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | fn foo<const LEN: usize, const DATA: [u8; LEN]>() {} | ^^^ the type must not depend on the parameter `LEN` + | + = note: const parameters may not be used in the type of const parameters error: `[u8; LEN]` is forbidden as the type of a const generic parameter --> $DIR/issue-71169.rs:5:38 diff --git a/tests/ui/const-generics/issues/issue-71381.full.stderr b/tests/ui/const-generics/issues/issue-71381.full.stderr index e17cf96aa..962eaf75b 100644 --- a/tests/ui/const-generics/issues/issue-71381.full.stderr +++ b/tests/ui/const-generics/issues/issue-71381.full.stderr @@ -3,12 +3,16 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | pub fn call_me<Args: Sized, const IDX: usize, const FN: unsafe extern "C" fn(Args)>(&self) { | ^^^^ the type must not depend on the parameter `Args` + | + = note: type parameters may not be used in the type of const parameters error[E0770]: the type of const parameters must not depend on other generic parameters --> $DIR/issue-71381.rs:23:40 | LL | const FN: unsafe extern "C" fn(Args), | ^^^^ the type must not depend on the parameter `Args` + | + = note: type parameters may not be used in the type of const parameters error[E0741]: using function pointers as const generic parameters is forbidden --> $DIR/issue-71381.rs:14:61 diff --git a/tests/ui/const-generics/issues/issue-71381.min.stderr b/tests/ui/const-generics/issues/issue-71381.min.stderr index 3950317b3..e1e140071 100644 --- a/tests/ui/const-generics/issues/issue-71381.min.stderr +++ b/tests/ui/const-generics/issues/issue-71381.min.stderr @@ -3,12 +3,16 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | pub fn call_me<Args: Sized, const IDX: usize, const FN: unsafe extern "C" fn(Args)>(&self) { | ^^^^ the type must not depend on the parameter `Args` + | + = note: type parameters may not be used in the type of const parameters error[E0770]: the type of const parameters must not depend on other generic parameters --> $DIR/issue-71381.rs:23:40 | LL | const FN: unsafe extern "C" fn(Args), | ^^^^ the type must not depend on the parameter `Args` + | + = note: type parameters may not be used in the type of const parameters error: using function pointers as const generic parameters is forbidden --> $DIR/issue-71381.rs:14:61 diff --git a/tests/ui/const-generics/issues/issue-71611.full.stderr b/tests/ui/const-generics/issues/issue-71611.full.stderr index 656aa29e1..e109459f2 100644 --- a/tests/ui/const-generics/issues/issue-71611.full.stderr +++ b/tests/ui/const-generics/issues/issue-71611.full.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | fn func<A, const F: fn(inner: A)>(outer: A) { | ^ the type must not depend on the parameter `A` + | + = note: type parameters may not be used in the type of const parameters error[E0741]: using function pointers as const generic parameters is forbidden --> $DIR/issue-71611.rs:5:21 diff --git a/tests/ui/const-generics/issues/issue-71611.min.stderr b/tests/ui/const-generics/issues/issue-71611.min.stderr index 01a85b745..b33d7cf98 100644 --- a/tests/ui/const-generics/issues/issue-71611.min.stderr +++ b/tests/ui/const-generics/issues/issue-71611.min.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | fn func<A, const F: fn(inner: A)>(outer: A) { | ^ the type must not depend on the parameter `A` + | + = note: type parameters may not be used in the type of const parameters error: using function pointers as const generic parameters is forbidden --> $DIR/issue-71611.rs:5:21 diff --git a/tests/ui/const-generics/issues/issue-77357.rs b/tests/ui/const-generics/issues/issue-77357.rs deleted file mode 100644 index 3cb8d3846..000000000 --- a/tests/ui/const-generics/issues/issue-77357.rs +++ /dev/null @@ -1,11 +0,0 @@ -#![feature(generic_const_exprs)] -#![allow(incomplete_features)] - -trait MyTrait<T> {} - -fn bug<'a, T>() -> &'static dyn MyTrait<[(); { |x: &'a u32| { x }; 4 }]> { - //~^ ERROR overly complex generic constant - todo!() -} - -fn main() {} diff --git a/tests/ui/const-generics/issues/issue-77357.stderr b/tests/ui/const-generics/issues/issue-77357.stderr deleted file mode 100644 index 68b35a38b..000000000 --- a/tests/ui/const-generics/issues/issue-77357.stderr +++ /dev/null @@ -1,11 +0,0 @@ -error: overly complex generic constant - --> $DIR/issue-77357.rs:6:46 - | -LL | fn bug<'a, T>() -> &'static dyn MyTrait<[(); { |x: &'a u32| { x }; 4 }]> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ blocks are not supported in generic constants - | - = help: consider moving this anonymous constant into a `const` function - = note: this operation may be supported in the future - -error: aborting due to previous error - diff --git a/tests/ui/const-generics/issues/issue-83993.rs b/tests/ui/const-generics/issues/issue-83993.rs deleted file mode 100644 index f2f05d952..000000000 --- a/tests/ui/const-generics/issues/issue-83993.rs +++ /dev/null @@ -1,14 +0,0 @@ -// check-pass - -#![feature(generic_const_exprs)] -#![allow(incomplete_features)] - -fn bug<'a>() -where - for<'b> [(); { - let x: &'b (); - 0 - }]: -{} - -fn main() {} diff --git a/tests/ui/const-generics/issues/issue-88997.stderr b/tests/ui/const-generics/issues/issue-88997.stderr index 505ba0da2..b49d52dd0 100644 --- a/tests/ui/const-generics/issues/issue-88997.stderr +++ b/tests/ui/const-generics/issues/issue-88997.stderr @@ -3,12 +3,16 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | struct Range<T: PartialOrd, const MIN: T, const MAX: T>(T) | ^ the type must not depend on the parameter `T` + | + = note: type parameters may not be used in the type of const parameters error[E0770]: the type of const parameters must not depend on other generic parameters --> $DIR/issue-88997.rs:8:54 | LL | struct Range<T: PartialOrd, const MIN: T, const MAX: T>(T) | ^ the type must not depend on the parameter `T` + | + = note: type parameters may not be used in the type of const parameters error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/issues/issue-90364.stderr b/tests/ui/const-generics/issues/issue-90364.stderr index e85bd136e..23424d7b9 100644 --- a/tests/ui/const-generics/issues/issue-90364.stderr +++ b/tests/ui/const-generics/issues/issue-90364.stderr @@ -3,6 +3,8 @@ error[E0770]: the type of const parameters must not depend on other generic para | LL | pub struct Foo<T, const H: T>(T) | ^ the type must not depend on the parameter `T` + | + = note: type parameters may not be used in the type of const parameters error: aborting due to previous error diff --git a/tests/ui/const-generics/late-bound-vars/in_closure.rs b/tests/ui/const-generics/late-bound-vars/in_closure.rs index 5294cc3b5..00fb535f0 100644 --- a/tests/ui/const-generics/late-bound-vars/in_closure.rs +++ b/tests/ui/const-generics/late-bound-vars/in_closure.rs @@ -1,4 +1,22 @@ -// run-pass +// failure-status: 101 +// known-bug: unknown +// error-pattern:internal compiler error +// normalize-stderr-test "internal compiler error.*" -> "" +// normalize-stderr-test "DefId\([^)]*\)" -> "..." +// normalize-stderr-test "\nerror: internal compiler error.*\n\n" -> "" +// normalize-stderr-test "note:.*unexpectedly panicked.*\n\n" -> "" +// normalize-stderr-test "note: we would appreciate a bug report.*\n\n" -> "" +// normalize-stderr-test "note: compiler flags.*\n\n" -> "" +// normalize-stderr-test "note: rustc.*running on.*\n\n" -> "" +// normalize-stderr-test "thread.*panicked.*\n" -> "" +// normalize-stderr-test "stack backtrace:\n" -> "" +// normalize-stderr-test "\s\d{1,}: .*\n" -> "" +// normalize-stderr-test "\s at .*\n" -> "" +// normalize-stderr-test ".*note: Some details.*\n" -> "" +// normalize-stderr-test "\n\n[ ]*\n" -> "" +// normalize-stderr-test "compiler/.*: projection" -> "projection" +// this should run-pass + #![feature(generic_const_exprs)] #![allow(incomplete_features)] diff --git a/tests/ui/const-generics/late-bound-vars/in_closure.stderr b/tests/ui/const-generics/late-bound-vars/in_closure.stderr new file mode 100644 index 000000000..557fbea2e --- /dev/null +++ b/tests/ui/const-generics/late-bound-vars/in_closure.stderr @@ -0,0 +1,13 @@ +error: query stack during panic: +#0 [mir_borrowck] borrow-checking `test::{closure#0}::{constant#1}` +#1 [mir_drops_elaborated_and_const_checked] elaborating drops for `test::{closure#0}::{constant#1}` +#2 [mir_for_ctfe] caching mir of `test::{closure#0}::{constant#1}` for CTFE +#3 [eval_to_allocation_raw] const-evaluating + checking `test::{closure#0}::{constant#1}` +#4 [eval_to_allocation_raw] const-evaluating + checking `test::{closure#0}::{constant#1}` +#5 [eval_to_valtree] evaluating type-level constant +#6 [typeck] type-checking `test` +#7 [used_trait_imports] finding used_trait_imports `test` +#8 [analysis] running analysis passes on this crate +end of query stack +error: aborting due to previous error + diff --git a/tests/ui/const-generics/late-bound-vars/simple.rs b/tests/ui/const-generics/late-bound-vars/simple.rs index 6da5395ef..5d19aaf0b 100644 --- a/tests/ui/const-generics/late-bound-vars/simple.rs +++ b/tests/ui/const-generics/late-bound-vars/simple.rs @@ -1,4 +1,21 @@ -// run-pass +// failure-status: 101 +// known-bug: unknown +// error-pattern:internal compiler error +// normalize-stderr-test "internal compiler error.*" -> "" +// normalize-stderr-test "DefId\([^)]*\)" -> "..." +// normalize-stderr-test "\nerror: internal compiler error.*\n\n" -> "" +// normalize-stderr-test "note:.*unexpectedly panicked.*\n\n" -> "" +// normalize-stderr-test "note: we would appreciate a bug report.*\n\n" -> "" +// normalize-stderr-test "note: compiler flags.*\n\n" -> "" +// normalize-stderr-test "note: rustc.*running on.*\n\n" -> "" +// normalize-stderr-test "thread.*panicked.*\n" -> "" +// normalize-stderr-test "stack backtrace:\n" -> "" +// normalize-stderr-test "\s\d{1,}: .*\n" -> "" +// normalize-stderr-test "\s at .*\n" -> "" +// normalize-stderr-test ".*note: Some details.*\n" -> "" +// normalize-stderr-test "\n\n[ ]*\n" -> "" +// normalize-stderr-test "compiler/.*: projection" -> "projection" + #![feature(generic_const_exprs)] #![allow(incomplete_features)] diff --git a/tests/ui/const-generics/late-bound-vars/simple.stderr b/tests/ui/const-generics/late-bound-vars/simple.stderr new file mode 100644 index 000000000..c0568f5a5 --- /dev/null +++ b/tests/ui/const-generics/late-bound-vars/simple.stderr @@ -0,0 +1,13 @@ +error: query stack during panic: +#0 [mir_borrowck] borrow-checking `test::{constant#1}` +#1 [mir_drops_elaborated_and_const_checked] elaborating drops for `test::{constant#1}` +#2 [mir_for_ctfe] caching mir of `test::{constant#1}` for CTFE +#3 [eval_to_allocation_raw] const-evaluating + checking `test::{constant#1}` +#4 [eval_to_allocation_raw] const-evaluating + checking `test::{constant#1}` +#5 [eval_to_valtree] evaluating type-level constant +#6 [typeck] type-checking `test` +#7 [used_trait_imports] finding used_trait_imports `test` +#8 [analysis] running analysis passes on this crate +end of query stack +error: aborting due to previous error + diff --git a/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.rs b/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.rs index 6215b7d93..86f2bc9c7 100644 --- a/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.rs +++ b/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.rs @@ -5,7 +5,7 @@ fn test<const N: usize>() {} fn issue_75323_and_74447_1<'a>() -> &'a () { test::<{ let _: &'a (); 3 },>(); - //~^ ERROR a non-static lifetime is not allowed in a `const` + //~^ ERROR generic parameters may not be used in const operations &() } @@ -19,7 +19,7 @@ fn issue_75323_and_74447_3() { fn issue_73375<'a>() { [(); (|_: &'a u8| (), 0).1]; - //~^ ERROR a non-static lifetime is not allowed in a `const` + //~^ ERROR generic parameters may not be used in const operations } fn main() {} diff --git a/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.stderr b/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.stderr index 5f641b070..7726016eb 100644 --- a/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.stderr +++ b/tests/ui/const-generics/min_const_generics/forbid-non-static-lifetimes.stderr @@ -1,21 +1,20 @@ -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/forbid-non-static-lifetimes.rs:7:22 | LL | test::<{ let _: &'a (); 3 },>(); - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions -error[E0658]: a non-static lifetime is not allowed in a `const` +error: generic parameters may not be used in const operations --> $DIR/forbid-non-static-lifetimes.rs:21:16 | LL | [(); (|_: &'a u8| (), 0).1]; - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information - = help: add `#![feature(generic_const_exprs)]` to the crate attributes to enable + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/const-generics/nested-type.rs b/tests/ui/const-generics/nested-type.rs index 5240f5c3b..ff9501806 100644 --- a/tests/ui/const-generics/nested-type.rs +++ b/tests/ui/const-generics/nested-type.rs @@ -3,7 +3,7 @@ #![cfg_attr(full, feature(adt_const_params))] #![cfg_attr(full, allow(incomplete_features))] -struct Foo<const N: [u8; { //[min]~ ERROR `[u8; _]` is forbidden +struct Foo<const N: [u8; { struct Foo<const N: usize>; impl<const N: usize> Foo<N> { @@ -15,5 +15,9 @@ struct Foo<const N: [u8; { //[min]~ ERROR `[u8; _]` is forbidden Foo::<17>::value() //~^ ERROR cannot call non-const fn }]>; +//[min]~^^^^^^^^^^^^ ERROR `[u8; { + +// N.B. it is important that the comment above is not inside the array length, +// otherwise it may check for itself, instead of the actual error fn main() {} diff --git a/tests/ui/const-generics/occurs-check/unused-substs-2.rs b/tests/ui/const-generics/occurs-check/unused-substs-2.rs index 9b1212694..84e24d1a3 100644 --- a/tests/ui/const-generics/occurs-check/unused-substs-2.rs +++ b/tests/ui/const-generics/occurs-check/unused-substs-2.rs @@ -1,9 +1,9 @@ #![feature(generic_const_exprs)] #![allow(incomplete_features)] -// The goal is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(_#1t)` subst. +// The goal is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(?1t)` subst. // -// If we are then able to infer `ty::Infer(TyVar(_#1t) := Ty<ct>` we introduced an +// If we are then able to infer `ty::Infer(TyVar(?1t) := Ty<ct>` we introduced an // artificial inference cycle. struct Foo<const N: usize>; @@ -20,8 +20,8 @@ impl<T> Bind<T> for Foo<{ 6 + 1 }> { fn main() { let (mut t, foo) = Foo::bind(); - // `t` is `ty::Infer(TyVar(_#1t))` - // `foo` contains `ty::Infer(TyVar(_#1t))` in its substs + // `t` is `ty::Infer(TyVar(?1t))` + // `foo` contains `ty::Infer(TyVar(?1t))` in its substs t = foo; //~^ ERROR mismatched types //~| NOTE cyclic type diff --git a/tests/ui/const-generics/occurs-check/unused-substs-3.rs b/tests/ui/const-generics/occurs-check/unused-substs-3.rs index d5aeab47e..6db18d587 100644 --- a/tests/ui/const-generics/occurs-check/unused-substs-3.rs +++ b/tests/ui/const-generics/occurs-check/unused-substs-3.rs @@ -1,9 +1,9 @@ #![feature(generic_const_exprs)] #![allow(incomplete_features)] -// The goal is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(_#1t)` subst. +// The goal is to get an unevaluated const `ct` with a `Ty::Infer(TyVar(?1t)` subst. // -// If we are then able to infer `ty::Infer(TyVar(_#1t) := Ty<ct>` we introduced an +// If we are then able to infer `ty::Infer(TyVar(?1t) := Ty<ct>` we introduced an // artificial inference cycle. fn bind<T>() -> (T, [u8; 6 + 1]) { todo!() @@ -11,8 +11,8 @@ fn bind<T>() -> (T, [u8; 6 + 1]) { fn main() { let (mut t, foo) = bind(); - // `t` is `ty::Infer(TyVar(_#1t))` - // `foo` contains `ty::Infer(TyVar(_#1t))` in its substs + // `t` is `ty::Infer(TyVar(?1t))` + // `foo` contains `ty::Infer(TyVar(?1t))` in its substs t = foo; //~^ ERROR mismatched types //~| NOTE cyclic type diff --git a/tests/ui/const-generics/outer-lifetime-in-const-generic-default.rs b/tests/ui/const-generics/outer-lifetime-in-const-generic-default.rs index 3018439af..de710b0e3 100644 --- a/tests/ui/const-generics/outer-lifetime-in-const-generic-default.rs +++ b/tests/ui/const-generics/outer-lifetime-in-const-generic-default.rs @@ -2,7 +2,7 @@ struct Foo< 'a, const N: usize = { let x: &'a (); - //~^ ERROR use of non-static lifetime `'a` in const generic + //~^ ERROR generic parameters may not be used in const operations 3 }, >(&'a ()); diff --git a/tests/ui/const-generics/outer-lifetime-in-const-generic-default.stderr b/tests/ui/const-generics/outer-lifetime-in-const-generic-default.stderr index 9d9555d3f..6b0d18f19 100644 --- a/tests/ui/const-generics/outer-lifetime-in-const-generic-default.stderr +++ b/tests/ui/const-generics/outer-lifetime-in-const-generic-default.stderr @@ -1,11 +1,11 @@ -error[E0771]: use of non-static lifetime `'a` in const generic +error: generic parameters may not be used in const operations --> $DIR/outer-lifetime-in-const-generic-default.rs:4:17 | LL | let x: &'a (); - | ^^ + | ^^ cannot perform const operation using `'a` | - = note: for more information, see issue #74052 <https://github.com/rust-lang/rust/issues/74052> + = note: lifetime parameters may not be used in const expressions + = help: use `#![feature(generic_const_exprs)]` to allow generic const expressions error: aborting due to previous error -For more information about this error, try `rustc --explain E0771`. diff --git a/tests/ui/const-generics/sneaky-array-repeat-expr.rs b/tests/ui/const-generics/sneaky-array-repeat-expr.rs index b147c246b..cd1607608 100644 --- a/tests/ui/const-generics/sneaky-array-repeat-expr.rs +++ b/tests/ui/const-generics/sneaky-array-repeat-expr.rs @@ -10,6 +10,7 @@ impl<const N: usize> Trait<N> for () { pub const fn foo<const N: usize>() where (): Trait<N> { let bar = [(); <()>::Assoc]; //~^ error: constant expression depends on a generic parameter + //~| error: constant expression depends on a generic parameter } trait Trait2<const N: usize> { @@ -24,6 +25,7 @@ impl<const N: usize> Trait2<N> for () { pub const fn foo2<const N: usize>() where (): Trait2<N> { let bar2 = [(); <()>::Assoc2]; //~^ error: constant expression depends on a generic parameter + //~| error: constant expression depends on a generic parameter } fn main() { diff --git a/tests/ui/const-generics/sneaky-array-repeat-expr.stderr b/tests/ui/const-generics/sneaky-array-repeat-expr.stderr index 5c77375d3..e532f27a1 100644 --- a/tests/ui/const-generics/sneaky-array-repeat-expr.stderr +++ b/tests/ui/const-generics/sneaky-array-repeat-expr.stderr @@ -7,12 +7,28 @@ LL | let bar = [(); <()>::Assoc]; = note: this may fail depending on what value the parameter takes error: constant expression depends on a generic parameter - --> $DIR/sneaky-array-repeat-expr.rs:25:21 + --> $DIR/sneaky-array-repeat-expr.rs:11:15 + | +LL | let bar = [(); <()>::Assoc]; + | ^^^^^^^^^^^^^^^^^ + | + = note: this may fail depending on what value the parameter takes + +error: constant expression depends on a generic parameter + --> $DIR/sneaky-array-repeat-expr.rs:26:21 | LL | let bar2 = [(); <()>::Assoc2]; | ^^^^^^^^^^^^ | = note: this may fail depending on what value the parameter takes -error: aborting due to 2 previous errors +error: constant expression depends on a generic parameter + --> $DIR/sneaky-array-repeat-expr.rs:26:16 + | +LL | let bar2 = [(); <()>::Assoc2]; + | ^^^^^^^^^^^^^^^^^^ + | + = note: this may fail depending on what value the parameter takes + +error: aborting due to 4 previous errors diff --git a/tests/ui/const-generics/transmute-fail.stderr b/tests/ui/const-generics/transmute-fail.stderr index 41b098135..3d1197afd 100644 --- a/tests/ui/const-generics/transmute-fail.stderr +++ b/tests/ui/const-generics/transmute-fail.stderr @@ -4,8 +4,8 @@ error[E0512]: cannot transmute between types of different sizes, or dependently- LL | std::mem::transmute(v) | ^^^^^^^^^^^^^^^^^^^ | - = note: source type: `[[u32; H+1]; W]` (generic size [const expr]) - = note: target type: `[[u32; W+1]; H]` (generic size [const expr]) + = note: source type: `[[u32; H+1]; W]` (generic size {const expr}) + = note: target type: `[[u32; W+1]; H]` (generic size {const expr}) error[E0512]: cannot transmute between types of different sizes, or dependently-sized types --> $DIR/transmute-fail.rs:16:5 @@ -34,8 +34,8 @@ error[E0512]: cannot transmute between types of different sizes, or dependently- LL | std::mem::transmute(v) | ^^^^^^^^^^^^^^^^^^^ | - = note: source type: `[[u32; H]; W]` (generic size [const expr]) - = note: target type: `[u32; W * H * H]` (generic size [const expr]) + = note: source type: `[[u32; H]; W]` (generic size {const expr}) + = note: target type: `[u32; W * H * H]` (generic size {const expr}) error[E0512]: cannot transmute between types of different sizes, or dependently-sized types --> $DIR/transmute-fail.rs:30:5 diff --git a/tests/ui/const-generics/variant-discrimiant-no-generics.full.stderr b/tests/ui/const-generics/variant-discrimiant-no-generics.full.stderr new file mode 100644 index 000000000..2f03b8e1f --- /dev/null +++ b/tests/ui/const-generics/variant-discrimiant-no-generics.full.stderr @@ -0,0 +1,34 @@ +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:7:15 + | +LL | Variant = N, + | ^ cannot perform const operation using `N` + | + = note: const parameters may not be used in enum discriminant values + +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:12:17 + | +LL | Variant = { N + 1 }, + | ^ cannot perform const operation using `N` + | + = note: const parameters may not be used in enum discriminant values + +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:18:37 + | +LL | Variant = { std::mem::size_of::<T>() as isize }, + | ^ cannot perform const operation using `T` + | + = note: type parameters may not be used in enum discriminant values + +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:25:17 + | +LL | let a: &'a (); + | ^^ cannot perform const operation using `'a` + | + = note: lifetime parameters may not be used in enum discriminant values + +error: aborting due to 4 previous errors + diff --git a/tests/ui/const-generics/variant-discrimiant-no-generics.min.stderr b/tests/ui/const-generics/variant-discrimiant-no-generics.min.stderr new file mode 100644 index 000000000..2f03b8e1f --- /dev/null +++ b/tests/ui/const-generics/variant-discrimiant-no-generics.min.stderr @@ -0,0 +1,34 @@ +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:7:15 + | +LL | Variant = N, + | ^ cannot perform const operation using `N` + | + = note: const parameters may not be used in enum discriminant values + +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:12:17 + | +LL | Variant = { N + 1 }, + | ^ cannot perform const operation using `N` + | + = note: const parameters may not be used in enum discriminant values + +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:18:37 + | +LL | Variant = { std::mem::size_of::<T>() as isize }, + | ^ cannot perform const operation using `T` + | + = note: type parameters may not be used in enum discriminant values + +error: generic parameters may not be used in enum discriminant values + --> $DIR/variant-discrimiant-no-generics.rs:25:17 + | +LL | let a: &'a (); + | ^^ cannot perform const operation using `'a` + | + = note: lifetime parameters may not be used in enum discriminant values + +error: aborting due to 4 previous errors + diff --git a/tests/ui/const-generics/variant-discrimiant-no-generics.rs b/tests/ui/const-generics/variant-discrimiant-no-generics.rs new file mode 100644 index 000000000..e286aa9a6 --- /dev/null +++ b/tests/ui/const-generics/variant-discrimiant-no-generics.rs @@ -0,0 +1,32 @@ +// revisions: full min + +#![cfg_attr(full, feature(generic_const_exprs))] +#![cfg_attr(full, allow(incomplete_features))] + +enum Foo<const N: isize> { + Variant = N, + //~^ ERROR: generic parameters may not be used in enum discriminant values +} + +enum Owo<const N: isize> { + Variant = { N + 1 }, + //~^ ERROR: generic parameters may not be used in enum discriminant values +} + +#[repr(isize)] +enum Bar<T> { + Variant = { std::mem::size_of::<T>() as isize }, + Other(T), //~^ ERROR: generic parameters may not be used in enum discriminant values +} + +#[repr(isize)] +enum UwU<'a> { + Variant = { + let a: &'a (); + //~^ ERROR: generic parameters may not be used in enum discriminant values + 10_isize + }, + Other(&'a ()), +} + +fn main() {} |